wayne shaw is correct.bottom line.i have owned at one time 10 custom rifles and many factory.the customs were built by benchrest hall of fame gunsmiths.a few by gunsmiths who are known to be in the shooting world as good as good gets.to shoot consistent 1/4 moa or better you need the right calibers,bullets,powders,light trigger which breaks clean and consistent.very good optics,case preparation and can read the wind.sometimes more is required.when i say 1/4 moa im talking 5 shot groups.also must know how to shoot which takes time.so if were talikg groups in the zeros 1s and mid 2s all day its possible.1 hole groups all day never.opening the same hole into a larger hole 5 shots very doable when the conditions are right.